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23. Electrical Characteristics
23.1. Absolute Maximum Ratings
Item
Power supply voltage
V
voltage
BUS
Flash programming voltage
Input voltage
Output voltage
High level output current
Low level output current
Operating temperature
Storage temperature
23.2. Recommended Operating Conditions
Item
Power supply voltage
SPI-Flash interface power supply voltage
Flash programming voltage
OSC1 oscillator oscillation frequency
OSC3 oscillator oscillation frequency
EXOSC external clock frequency
Bypass capacitor between V
SS
Capacitor between V
and V
SS
Gate capacitor for OSC1 oscillator
Drain capacitor for OSC1 oscillator
Gate capacitor for OSC3 oscillator
Drain capacitor for OSC3 oscillator
Debug pin pull-up resistors
Capacitor between V
and V
SS
Capacitor between V
and V
SS
*1
The component values should be determined after performing matching evaluation of the resonator mounted on the printed
circuit board actually used.
*2 R
are not required when using the debug pins as general-purpose I/O ports.
DBG1–2
*3 C
should be connected only when the V
VPP
S1C31D50 TECHNICAL MANUAL
(Rev. 1.00)
Symbol
V
DD
V
BUS
V
PP
V
#RESET, TEST, P10–17, P40, PD2, PD3
I
P00–07, P20–27, P30–37, P40–47, P50–57, P60–
67, P70-77,P80-87,P90-95,PA0–A6,PD0-D1,D4-D5
V
O
I
1 pin
OH
Total of all pins
I
1 pin
OL
Total of all pins
Ta
Tstg
Symbol
V
For normal operation
DD
V
voltage mode = mode1
D1
For Flash
programmin
g
VDDQSPI
For P9 port groups for QSPI
V
PP
f
Crystal oscillator
OSC1
f
Crystal/ceramic oscillator
OSC3
f
When supplied from an external oscillator
EXOSC
and V
C
DD
PW1
C
D1
PW2
C
When crystal oscillator is used *1
G1
C
When crystal/ceramic oscillator is used *1
D1
C
When crystal/ceramic oscillator is used *1
G3
C
*1
D3
R
*2
DBG1–2
C
*3
PP
VPP
C
REFA
VREFA
voltage is not stable.
PP
Seiko Epson Corporation
Condition
Condition
When V
is supplied externally
PP
When V
is generated internally
PP
(V
= 0 V)
SS
Rated value
Unit
-0.3 to 7.0
V
-0.3 to 7.0
V
-0.3 to 8.0
V
-0.3 to V
+ 0.5
V
DD
-0.3 to 7.0
V
-0.3 to V
+ 0.5
V
DD
-10
mA
-20
mA
10
mA
20
mA
-40 to 85
°C
-65 to 125
°C
Min.
Typ.
Max.
Unit
1.8
–
5.5
V
1.8
–
3.6
V
2.4
–
5.5
V
2.7
–
5.5
V
3.0
–
3.6
V
7.3
7.5
7.7
V
–
32.768
–
kHz
0.2
–
16.8
MHz
0.016
–
16.8
MHz
–
3.3
–
µF
–
1.0
1.2
µF
0
–
25
pF
–
0
–
pF
0
–
100
pF
0
–
100
pF
–
100
–
kΩ
–
0.1
–
µF
–
0.1
–
µF
23-1
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